Question

How can you create chainable route handlers for a route path in the Express JS app?

I'm looking to create chainable route handlers for a specific route path in my Express.js app, but I'm not sure how to set it up properly. I know Express allows multiple middleware functions, but I’m unsure of how to chain them together efficiently for a single route. Could someone explain how to implement chainable route handlers in Express.js for a route path?

Answer 1

The.route() method in an Express.js application allows you to construct chainable route handlers for a route path. This enables you to chain several HTTP methods for a single route path, such as GET, POST, etc.

app.route('/path')
   .get((req, res) => { /* handle GET request */ })
   .post((req, res) => { /* handle POST request */ })
   .put((req, res) => { /* handle PUT request */ });

Example

const express = require('express');
const app = express();

app.route('/example')
  .get((req, res) => res.send('GET Request'))
  .post((req, res) => res.send('POST Request'));

app.listen(3000, () => console.log('Server running on port 3000'));

By combining several route methods into a single, comprehensible chain, this method streamlines your code.